Introduction

(To be written)

The RIXS data was collected at multiple $L$ values along the $(H, K, L)$ direction in reciprocal space. Raw spec files from three measurement sessions (Oct 5, 6, 8, 2023) were converted to JSON format and unified into a single dataset organized by $L$ value.

Each scan entry contains: - Momentum in r.l.u. $(H, K, L)$ - Energy loss spectrum (positive energy = excitations) - Intensity normalized by mirror current - Sample position and angle metadata

The energy axis was inverted during preprocessing to follow the standard RIXS convention where positive energy corresponds to energy loss.

RIXS spectra measured at different $(H, K)$ points for various $L$ values. The spectra are normalized by mirror current and colored by $\sqrt{H^2 + K^2}$ to visualize the momentum dependence.